the word 'successful' is built upon the core concept of 'success', which originates from the latin 'successus', the past participle of 'succedere' meaning 'to come close after, to go up to, to follow after'. the latin components are 'sub-' (under, upward) and 'cedere' (to go). the literal sense was of a favorable outcome 'coming up' or 'following after' an endeavor. the english suffix '-ful' was later appended to the noun 'success' to form the adjective, shifting the meaning from the event itself to the state of 'being full of success' or 'having the qualities of success'.

Structure: suc (under, upward) + cess (go, move) + ful (full of, having the qualities of) suc- is a variant of the latin prefix 'sub-' meaning 'under, upward'. cess comes from the latin verb 'cedere' meaning 'to go, to move, to yield'. ful is an english suffix from old english '-full', meaning 'full of, characterized by'.